SUMMARY

• Overall 8 years of experience in Mphasis on Big Data Technologies, Hadoop Administration.
• 3 Years of extensive experience as Hadoop Administrator with strong expertise in setting up Hadoop/HBase clusters.
• Excellent understanding / knowledge of Hadoop architecture and various components such as HDFS, Job Tracker, Task Tracker, Name Node, Data Node and MapReduce programming paradigm. Strong Understanding of NoSQL Databases (HBASE, Cassandra.)
• Experience in installation, configuration, supporting and managing Hadoop Clusters using Apache, Horton works, and Cloudera (CDH3, CDH4) distributions and on Amazon web services (AWS).
• Hands - on experience on major components in Hadoop Ecosystem including Hive, HBase, HBase-Hive Integration, PIG, Swoop, Flume & knowledge of Mapper/Reduce/HDFS Framework.
• Set up standards and processes for Hadoop based application design and implementation.
• Worked on NoSQL databases including HBase, Cassandra and MongoDB.
• Good experience in analysis using PIG and HIVE and understanding of SQOOP and Puppet.
• Expertise in database performance tuning & data modeling.
• Developed automated scripts using Unix Shell for performing RUNSTATS, REORG, REBIND, COPY, LOAD, BACKUP, IMPORT, EXPORT and other related to database activities.
• Experienced in developing MapReduce programs using Apache Hadoop for working with Big Data.
• Good understanding of XML methodologies (XML, XSL, XSD) including Web Services and SOAP.
• Expertise in working with different databases likes Oracle, MS-SQL Server, Postgress, and MS Access 2000 along with exposure to Hibernate for mapping an object-oriented domain model to a traditional relational database.
• Extensive experience in data analysis using tools like Syncsort and HZ along with Shell Scripting and UNIX.
• Involved in log file management where the logs greater than 7 days old were removed from log folder and loaded into HDFS and stored for 3 months.
• Expertise in development support activities including installation, configuration and successful deployment of changes across all environments
• Familiarity and experience with data warehousing and ETL tools.
• Good working Knowledge in OOA & OOD using UML and designing use cases.
• Good understanding of Scrum methodologies, Test Driven Development and continuous integration.
• Experience in production support and application support by fixing bugs
• Used HP Quality Center for logging test cases and defects.
• Major strengths are familiarity with multiple software systems, ability to learn quickly new technologies, adapt to new environments, self-motivated, team player, focused adaptive and quick learner with excellent interpersonal, technical and communication skills.

PROFESSIONAL EXPERIENCE

Hadoop Admin

Confidential - Dallas, TX

Responsibilities:

• Solid Understanding of Hadoop HDFS, Map-Reduce and other Eco-System Projects
• Installation and Configuration of Hadoop Cluster
• Working with Cloudera Support Team to Fine tune Cluster
• Plugin allows Hadoop MapReduce programs, HBase, Pig and Hive to work unmodified and access files directly. The plugin also provided data locality for Hadoop across host nodes and virtual machines.
• Developed map Reduce jobs to analyze data and provide heuristics reports
• Adding, Decommissioning and rebalancing nodes
• Created POC to store Server Log data into Cassandra to identify System Alert Metrics
• Rack Aware Configuration
• Configuring Client Machines
• Configuring, Monitoring and Management Tools
• HDFS Support and Maintenance
• Cluster HA Setup
• Applying Patches and Perform Version Upgrades
• Incident Management, Problem Management and Change Management
• Performance Management and Reporting
• Recover from Name Node failures
• Schedule Map Reduce Jobs -FIFO and FAIR share
• Installation and Configuration of other Open Source Software like Pig, Hive, HBASE, Flume and Sqoop
• Integration with RDBMS using swoop and JDBC Connectors
• Working with Dev Team to tune Job Knowledge of Writing Hive Jobs

Environment: RHEL, puppet, CDH 3 distribution, Tableau, Datameer, HBase, CDH Manager, YARN, Hive, Flume.

Data Base Admin

Confidential

Responsibilities:

• Created the Database, User, Environment, Activity, and Class diagram for the project (UML).
• Implement the Database using Oracle database engine.
• Designed and developed a fully functional generic n-tiered J2EE application platform the environment was Oracle technology driven. The entire infrastructure application was developed using Oracle JDeveloper in conjunction with Oracle ADF-BC and Oracle ADF- RichFaces.
• Created an entity object (business rules and policy, validation logic, default value logic, security)
• Created View objects, View Links, Association Objects, Application modules with data validation rules (Exposing Linked Views in an Application Module), LOV, dropdown, value defaulting, transaction management features.
• Web application development using J2EE: JSP, Servlets, JDBC, Java Beans, Struts, Ajax, JSF, JSTL, Custom Tags, EJB, JNDI, Hibernate, ANT, JUnit and Apache Log4J, Web Services, Message Queue (MQ).
• Designing GUI prototype using ADF 11G GUI component before finalizing it for development.
• Experience using Version controls such as CVS, PVCS, and Rational Clear Case.
• Creating Modules Using Task Flow with Bounded and Unbounded
• Generating WSDL (Web Services) And Create Work Flow Using BPEL
• Handel the AJAX functions (partial trigger, partial Submit, auto Submit)
• Extensively used XML documents with XSLT and CSS to translate the content into HTML to present to GUI
• Developed Enterprise java Beans like Entity Beans, session Beans (both Stateless and State full Session beans) and Message Driven Beans.
• Developed, Tested and Debugged the Java, JSP and EJB components using Eclipse.
• Used Struts Framework to implement J2EE design patterns (MVC).

Environment: Java, J2EE, EJB 2.1, JSP 2.0, Servlets 2.4, JNDI 1.2, Java Mail 1.2, JDBC 3.0, Struts, HTML, XML, CORBA, XSLT, Java Script, Eclipse3.2, Oracle10g, Weblogic8.1, Windows 2003.

Java Developer

Confidential

Responsibilities:

• Involved in creating use case, class, sequence, package dependency diagrams using UML.
• Also involved in analysis and requirements gathering phase.
• Developed Server side code using Servlets, JSPs running on Apache tomcat 3.0 and Enterprise Beans running on IBM Web sphere Application Server.
• Developed web pages using HTML, JSP, DHTML and CSS.
• Used JavaScript for certain form validations, submissions and other client side operations.
• Created Stateless Session Beans to communicate with the client.
• Created the database tables in Oracle 7i; created the required SQL queries and used JDBC to perform database operations.
• Developed a prototype of the application and demonstrated to business users to verify the application functionality.
• Design, develop and implement MVC Pattern based Keyword Driven automation testing framework utilizing Java, JUnit and Selenium WebDriver.
• Used automated scripts and performed functionality testing during the various phases of the application development using Selenium.
• Prepared user documentation with screenshots for UAT (User Acceptance testing).
• Environment: Java, JavaScript, HTML, CSS, Xpath, Selenium Webdriver, Eclipse, JUnit, Jmeter, Jira, Windows, Mac OSX, Oracle 10g, Agile Methodology.
• Developed and implemented the MVC Architectural Pattern using Struts Framework including JSP, Servlets, EJB, Form Bean and Action classes.
• Used parsers like SAX and DOM for parsing xml documents and used XML transformations using XSLT.
• Worked with QA team for testing and resolving defects.
• Used ANT automated build scripts to compile and package the application.
• Used Jira for bug tracking and project management.

Environment: Java, HTML, JSP, CSS, Servlets, JavaScript, JDBC, Oracle 7i, EJB 1.1, Apache tomcat 3.0, IBM Web sphere